Quote from the movie Daredevil: "Yeah, but, then again, so does a vigilante who thinks every day is Halloween."
Holidays like Halloween, Christmas and Easter require special attention for the promotion. By graphically enhancing a QR Code this theme can be made part of the QR Code itself.
Integration of images in the QR Code itself enables the possibility to insert multiple images, while still maintaining the scan speed and readability.
Happy Halloween :-)